Motor control device and method of controlling the same
US9490734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2012 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Jun 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2209/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor control device including a preprocessing portion calculating a counter electromotive force using an analog operation is provided. The motor control device may include an offset compensation portion and a counter electromotive force measuring portion. The offset compensation portion receives a three-phase current signal from the motor and compensates an offset of the three-phase current signal. The counter electromotive force measuring portion receives the compensated current signal and a three-phase voltage signal from the motor and calculates the received current signal and the received voltage signal using an analog operation to provide the calculated result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.